com.concordium.sdk.transactions

Class Parameter

java.lang.Object

com.concordium.sdk.transactions.Parameter

public final class Parameter
extends Object

The parameters are used for calling a smart contract instance. i.e. calling a "init" or "receive" function exposed in the smart contract with the parameters. This object retains the raw parameters that are sent to the contract. For protocol versions below ProtocolVersion.V5 the size is limited to 1kb. From protocol version ProtocolVersion.V5 and onwards the size is limited to be 64kb.

Field Summary

Fields

Modifier and Type	Field and Description
static Parameter	EMPTY
static int	MAX_SIZE

Method Summary

Modifier and Type	Method and Description
boolean	equals(Object o)
static Parameter	from(byte[] parameter) This function takes a byte array and returns a Parameter object.
static Parameter	from(com.concordium.grpc.v2.Parameter parameter)
byte[]	getBytes() Get the serialized parameter, namely the length of the parameter (encoded via 2 bytes, big endian) and concatenated with the actual parameter bytes.
byte[]	getBytesForContractInvocation() Get the parameter bytes for contract invocation i.e.
int	hashCode()
String	toString()

Methods inherited from class java.lang.Object

clone, finalize, getClass, notify, notifyAll, wait, wait, wait

Field Detail

MAX_SIZE

public static final int MAX_SIZE

See Also:

Constant Field Values

EMPTY

public static final Parameter EMPTY

Method Detail

from

public static Parameter from(byte[] parameter)

This function takes a byte array and returns a Parameter object.

from

public static Parameter from(com.concordium.grpc.v2.Parameter parameter)

getBytes

public byte[] getBytes()

Get the serialized parameter, namely the length of the parameter (encoded via 2 bytes, big endian) and concatenated with the actual parameter bytes.

Returns:

the serialized parameter

getBytesForContractInvocation

public byte[] getBytesForContractInvocation()

Get the parameter bytes for contract invocation i.e. off-chain operation. This differs from getBytes() as this does not prepend the returned byte array with the length of the parameters. This function should be only be used for ClientV2.invokeInstance(InvokeInstanceRequest) calls.

Returns:

the parameters

toString

public String toString()

Overrides:

toString in class Object

equals

public boolean equals(Object o)

Overrides:

equals in class Object

hashCode

public int hashCode()

Overrides:

hashCode in class Object